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• All HTTPS, or is it OK to accept HTTP and redirect (secure vs. user friendly)

  - by tharrison

  Our site currently redirects requests sent to http://example.com to https://example.com -- everything beyond this is served over SSL. For now, the redirect is done with an Apache rewrite rule. Our site is dealing with money, however, so security is pretty important. Does allowing HTTP in this way pose any greater security risk than just not opening or listening on port 80? Ideally, it's a little more user-friendly to redirect. (I am aware that SSL is only one of a large set of security considerations, so please make the generous assumption that we have done at least a "very good" job of covering various security bases.)

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• Why can't email clients create rules for moving dates like "yesterday"?

  - by Morgan

  I've never seen an email client that I could easily create a rule to do something like "Move messages from yesterday to a folder?" Is there some esoteric reason why this would be difficult? I know I can easily create rules around specific dates, but that isn't the same thing by a long shot; am I missing something? In Outlook 2010 I can create search folders that do sort of this type of thing, but you can't create rules around a search folder... seems like either I am missing something major, or this is terribly short-sided.

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• How can I ensure an ex-administrator of Exchange doesn't still have email access somewhere?

  - by Tony T

  I work for a company in which an ex-employee had administrative access to Microsoft Exchange 2007, and I understand that at some points this person had email which was sent to other employees also forwarded on to him. Upon taking over the administration of the server, of course all of his known accounts were closed, and any of those forwarding rules were removed. However, I would like to ensure that we didn't miss anything. What would be the best way to ensure that: (1) There isn't still some sort-of email being forwarded on to him somewhere? (2) That he doesn't have some sort-of other access to an inbox or another employee's email? I am less concerned about access to the box itself as I am that there is an existing email rule somewhere that is still getting run, or that there is a distribution list that we missed, etc.

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• Can't get iptables firewall working correctly

  - by Jay

  I'm setting up a new Centos 5.6 system and can't get my iptables firewall to work correctly. it won't let me use SSH through it. I'm new to Centos but not to Linux or iptables. I've been removing things until I have isolated the problem. I set up the firewall with a default ACCEPT rule for the INPUT chain. I can connect through to the server fine. If I change the command to only allow traffic from the interface connecting to my trusted network it stops working. Working: iptables -A INPUT -s 0/0 -d 0/0 -j ACCEPT Failing: iptables -A INPUT -i eth0 -s 0/0 -d 0/0 -j ACCEPT I've double checked the ip address I'm using corresponds to eth0 using ifconfig. Any ideas where I went wrong?

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• Redirect non-www ssl traffic to www ssl (apache)

  - by The NinjaSysadmin

  Hello, I'm attempting to get a redirect which is failing, and for some reason I can't think today. I have a vHost file within HTTPD that listens on standard port 80 and port 443. I'm attempting to redirect https://domain.com/(.*) to https://www.domain.com/$1 so that the URL remains intact. My config is as follows: ServerName www.domain.com ServerAlias tempdomain.testdomain.co.uk ServerAlias domain.com My rerwrite rule I'm using is. RewriteCond %{HTTP_HOST} ^domain.com$ RewriteRule ^(.*)$ https://www.domain.com$1 [R=301,L] I've also tried removing the . and $ but nothing.. When I visit the url https://domain.com/secure.page?action=comp it doesn't redirect to https://www.domain.com/secure.page?action=comp I do also have other SSL pages, the above was just an example.. Can anyone point out my stupidity.

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• Personally identifiable information (PII) on shared web hosting

  - by S. Cobbs

  Hey folks, I am providing web hosting services (shared and dedicated) and have had one of my shared hosting clients mention needing an SSL cert for their site where they are collecting insurance quotes in a form, including names and social security numbers. My privacy sense is tingling, and I'm pretty sure it's not legal (in the US) to do this on a shared system, but can't find anything to support my thoughts outside of PCI-DSS, but the customer isn't processing payments through the site so I'm not sure if that applies. I'm reading lots of policy documents where people advise to minimize and manage the PII footprint internally, but as the host I don't want to put all of my customer's clients at possible risk. I'm not looking here for legal advice necessarily, but perhaps someone in a similar position to mine can provide some rule of thumb or point me in the right direction.

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• What special configuration is needed to have a domain controller with DNS on a VM in Hyper-V?

  - by Michael J. Gray

  I have a server running Windows Server 2012 and it only has the Hyper-V role. I have a VM also running Windows Server 2012 and it has the Active Directory: Directory Services and DNS ([example.com]) roles. It has been promoted to a domain controller for [example.com]. In the virtualization host I have joined the domain successfully. On a laptop on the network, it can ping my DNS that is inside the VM on the virtualization host. However, it can't resolve anything through the DNS. I figured it was a firewall issue where the DNS had the firewall allow rule, but the virtualization host did not. I added that, but it didn't fix the issue. On my laptop, I get "UnKnown can't find [example.com]: No response from server" immediately. There's no time out, it just comes back right away. What have I overlooked?

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• Firewall is blocking internet traffic to OpenVPN clients

  - by user268905

  I have a virtual network setup with a Linux router/firewall connected to two private networks. An OpenVPN server in routing mode and a web server are in one of the networks. On the other are linux client machines which access the webserver and the Internet through the OpenVPN server. Also, external clients can access the OpenVPN from the Internet. The OpenVPN's server.conf is setup to use routing mode in udp, push DNS and routes to the network it is in so clients can access the webserver. Here are my very strict firewall rules. After connecting to the OpenVPN server, my clients can not access the Internet or the web server. When I allow FORWARD traffic to go through, it works just fine. The OpenVPN server has full internet connectivity. What firewall rule do I need to add to allow internet traffic to reach my clients?

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• nginx rewrite for an url with parameters

  - by David

  I have an URL of this type: http://www.example.com/?param1=val1&param2=&param3=val3&param4=val4&param5=val5 And I want to redirect it to this one: http://www.example.com/newparam/val3/val4 So I have tried this rewrite rule with no success: rewrite "/?param1=val1&param2=&param3=(.+)&param4=(.+)&param5=(.+)" http://www.example.com/newparam/$1/$2 redirect; Is nginx not able to deal with query parameters? EDIT: I don't want to rewrite all petitions. I only need to rewrite that URL, without affecting the others.

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• "private" directory not accessible in Apache

  - by janeden

  The directory private lives under my DocumentRoot, and despite its name, it should be accessible just like any other dir. But if I add the following RewriteRule to httpd.conf: RewriteRule ^/([^\.]+)$ /$1.html [L] Apache returns 403 for http://server/private/2201. The error log states client denied by server configuration: /private/2201.html If I then rename private to foo, or if I request 2201.html directly, the file is served: 127.0.0.1 - - [21/Nov/2011:10:24:45 +0100] "GET /private/2201 HTTP/1.1" 403 214 127.0.0.1 - - [21/Nov/2011:10:24:58 +0100] "GET /foo/2201 HTTP/1.1" 200 3068 127.0.0.1 - - [21/Nov/2011:10:27:39 +0100] "GET /private/2201.html HTTP/1.1" 200 3068 This is confusing. Is there any special rule for directories named private? If so – why does the direct request for 2201.html work (although the denied request seems to handle the same resource, at least according to the error log entry)?

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• Automatically save attachments from mail on a network drive

  - by user269646

  Every morning I receive an automatically generated e-mail from a server, it includes a spreadsheet attachment. I made a rule in outlook that captures these emails. Now, I would like to make a macro to rename the attached file (. Xls) to =today() and saves it in a folder on a network drive. This macro must run every weekday at 8:00. I've made a lot of VBA in Excel, but have no experience in outlook. Might this be possible? And does anyone know how to do it? Kind regards Staal

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• FTP blocked by firewall on windows 8.1 update 1 public network

  - by amik

  I've recently upgraded to Windows 8.1 u1. I connect to VPN to one of my projects, over which I connect to FTP server (using Total Commander 8.51a). Now, when I try to connect, Total Commander hangs on "Download" (in case of passive connection on "PASV" command). I've figured out that the problem is somehow caused by firewall, because it works if I disable firewall or I set the VPN network location to "private" (which I don't want, it is not enough trusted network for me) I tried to add total commander to firewall exception for total commander, both to inbound and outbound rule, but with no success. I have no more ideas how to configure the firewall to make FTP work properly, can you plese help me? thanks in advance.

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• Relating ping to perceived browser GUI response

  - by cvsdave

  We periodically get complaints of poor GUI (browser page) response that we need to explore. I am looking for a quick and cheap first check to see if the issue is network latency, or server performance. Has anyone encountered any discussion of ping time and perceived GUI response? I understand that GUI response is complicated, but it would be nice if we could find or develop a rule of thumb along the lines of "Hmmmm, ping is over 200, it might be network problems". Ideally, this lives in a script on the user's machine so that we can see the latency that they are seeing... (BASH, Linux). A reference to a good discussion page would be a fine answer, as would any recommendation of other source material.

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• UFW blocking webrick on port 3000

  - by t Book

  On a ubuntu 10.0.4 server runs redmine. starting webrick with: ./server webrick -e production -b lvps46-173-79-113.dedicated.hosteurope.de -d makes redmine available in browser. as soon as we enable ufw, webrick can´t be accessed anymore. of course we allowed Port 3000 from anywhere ufw allow 3000/tcp ufw allow 3000/udp also a grep for iptables doesn´t show a deny rule iptables -nL | grep 3000 find the whole iptables output here http://pastebin.com/k6WNqdPU checking lsof -ni tcp:2222 tells me ruby is listening on port 3000 ruby 3457 root 5u IPv4 864846667 0t0 TCP 46.173.79.113:3000 (LISTEN) What else can we check? what´s wrong with the ufw rules for port 3000?

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• Centos 6.2, Apache 2 and Listen port for socket connection

  - by salvosav

  I'm trying to make a socket connection between a client and my server through a php script. To do this, I opened a port on iptables, and configure a virtual host with apache to redirect all traffic from my door to the folder that contains the file index.php, which is my script. Doing some tests the door is open, but using command netstat -ltn , I see ':::35100'. Looking on the net I understand if in this way is only listen inward and not outward. But I don't understand how can I turn this ':::35100 '-' in this '0.0.0.0:35100 '. Or, better yet, how to add this rule. Any ideas? thanks

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• Fedora: "Login Incorrect"

  - by darkblackcorner

  I've just set up a minimal install on my netbook (the default was too resource hungry, so I figured I'd customize the install and learn something about linux at the same time!) No problems logging in as root, but when I create a new user and try to login as them I just get the "Login incorrect" error. I'm certain the password is correct, though the secure log displays an authentication error. Am I missing a permission somewhere? useradd test usermod -p [pwd] test Shell is added automatically I think (checking password file says shell is /bin/bash) I've tried adding the user to the sudo-ers group usermod -a -G wheel which doesn't help. I've kept the password simple in order to rule out human error.

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• How to inspect/modify Windows Firewall rules while the Windows Firewall/ICS service is stopped and disabled?

  - by Kal

  I'm trying to fix up my friend's remote Windows Server 2003 R2 machine. I have Remote Desktop access at the moment. However, I notice that Windows Firewall/Internet Connection Sharing service of the remote machine is disabled, which seems to be a bad idea. If I enable and start the service now, I may lose my Remote Desktop access in case the exception rule for Remode Desktop has not been defined in Windows Firewall. So I need a way to inspect and modify exception rules even as the Windows Firewall/ICS service is stopped and disabled. Does anybody know how?

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• Unable to connect to FTP sites

  - by Fariborz Navidan

  Since a few days ago I am unable to connect to any FTP site neither through Windows's FTP client nor through other software like WinSCP. But I can login through command line FTP client. I am using Windows 7. ESET firewall is disabled and did not find any blocking rule in windows firewall. A symptom is when enter ftp://my-server.com in windows explorer address bar it says "windows cannot access the folder" and there is no further info in Details section. Please help!

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• Rejecting new HTTP requests when server reaches a certain throughput

  - by user56221

  I have a requirement to run an HTTP server that rejects new HTTP requests (with a 503, or similar) when the global transfer rate of current HTTP responses exceeds a certain level. For example, if the web server is transferring at 98Mbps, and a new HTTP request arrives, we would want to reject this (as we couldn't guarantee a good speed). I've had a look at mod_cband for Apache, limit_req for nginx, and lighttpd's rate limiting features, but none of them seem to handle my (rather contrived, granted) use case. I should add that I'm open to using pretty much any web server, and am open to implementing this in iptables rules if someone can craft such a rule! (Refusing the TCP connection is fine, it doesn't have to respond with an HTTP 503). Any suggestions?

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• iptables to allow input and output traffic to and from web server only

  - by Caedmon

  I have an Elastic Search server which seems to have been exploited (it's being used for a DDoS attack having had NO firewall for about a month). As a temporary measure while I create a new one I was hoping to block all traffic to and from the server which wasn't coming from or going to our web server. Will these iptables rules achieve this: iptables -I INPUT \! --src 1.2.3.4 -m tcp -p tcp --dport 9200 -j DROP iptables -P FORWARD \! --src 1.2.3.4 DROP iptables -P OUTPUT \! --src 1.2.3.4 DROP The first rule is tried and tested but obviously wasn't preventing traffic coming from my server to other IP addresses so I was hoping I could add the second two rules to full secure it.

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• Windows 7 Laptop, cursor jumping after typing the letters "y" or "t" [closed]

  - by Dave K

  My wife has an HP laptop running windows 7. She has a very frustrating problem when typing: in some, but not all cases, typing the letter's "y" or "t" will cause the cursor to jump back a few lines or some number of words. The result is that she ends up typing over whatever it was that she was working on. (as a matter of fact, I just experienced this while typing this question on her computer with the phrase: "typing the letter..." above.) I've installed the latest drivers for her touchpad from Synaptic and disabled tap touching and gesture features to rule out simple unintended mouse clicks. Still the "y" and "t" keys continue to cause problems.

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• nginx clean url router/rewrites

  - by Janko

  im having difficulties with a relativity simple rewrite rules / router in nginx config. All I want to do is, if requested dir or file 'host/my/request/path[/[index.php]]' does not exist, rewrite to 'host/my/request/path.php' Current rewrite works for: host host/ host/my/request/path But wont work for: host/my/request/path/ Here is the rewrite part of the config: location = /(.*)/ { rewrite ^(.*)$ $1 permanent; } location / { try_files $uri/ $uri $uri.php; } Error log will report: Access forbidden by rule, request: "GET /my/request/path/ HTTP/1.0" Hm, is there a better way to solve this or get rid of the trailing slash? edit, rules more elaborative: host[/] > host/index.php host/index[/] > host/index.php host/my/path[/] > if /path/index.php exists: host/my/path/index.php else host/my/path.php

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• Can't access sub domain from my network [closed]

  - by Maninder

  I am trying to access http://www.abc.xyz.com from my network, but not able to do so. However, http://www.xyz.com is opening fine in my browser. Asked a friend to open abc.xyz.com from his machine(in a different network), its opening fine. Checked my firewall settings as well. There's no such rule to deny the specific site or something that could be denying access to the sub domain. Kindly advise, how I can troubleshoot my problem.

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• RewriteMap syntax Regex

  - by ienabellamy

  in my .htaccess i've tons of directives, with same syntax: RewriteRule ^(.*)/PRODUCT_1.aspx http://www.site.com/product.php?id_product=2891 RewriteRule ^(.*)/PRODUCT_2.aspx http://www.site.com/product.php?id_product=2896 and everything works. Now, i created a RewriteMap in my because i need to increase velocity (20.000 redirect 301 in htaccess no good), so: RewriteEngine On RewriteMap redirects dbm=db:/var/www/html/presta152/prestashop/redirects.db RewriteCond ${redirects:$1} !="" RewriteRule ^(.*)$ ${redirects:$1} [redirect=permanent,last] and my redirects.db is created by redirects.txt, that contains: /PRODUCT_1.aspx http://www.site.com/product.php?id_product=2891 /PRODUCT_2.aspx http://www.site.com/product.php?id_product=2896 this works if i try to call for example: www.site.com/PRODUCT_1.aspx i'm redirected... but if i try to call www.site.com/everythingpossibileinside/PRODUCT_1.aspx the redirect doesn't work. So, in my .htaccess this rule: RewriteRule ^(.*)/PRODUCT_1.aspx http://www.site.com/product.php?id_product=2891 works, but in my RewriteMap no. I think i must change this directive: RewriteRule ^(.*)$ ${redirects:$1} [redirect=permanent,last] i tried, but unsuccessful. Thanks to all.

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• How iptables behaves on timezone change?

  - by pradipta

  I have doubt how iptables keep changing the info in iptables when timezone is change. I am using iptables s v 1.4.8 I have blocked one IP with following details # date Thu Jun 6 12:46:42 IST 2013 #iptables -A INPUT -s 10.0.3.128 -m time --datestart 2013-6-6T12:0:00 --datestop 2013-6-6T13:0:00 -j DROP # iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination DROP all -- 10.0.3.128 anywhere TIME starting from 2013-06-06 12:00:00 until date 2013-06-06 13:00:00 Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination But after I change the timezone following things happened automatically . AFTER TIME ZONE CHANGE +++++++++++++++++++++++ #date Thu Jun 6 15:17:48 HKT 2013 # iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination DROP all -- 10.0.3.128 anywhere TIME starting from 2013-06-06 14:30:00 until date 2013-06-06 15:30:00 Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination # The time value is changed in the rule . It is changing with the timezone how. Where iptables keeps track of timezone. Kindly explain me.

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